//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#include "core/rendering/shaders/gl/torque.glsl"
#include "core/rendering/shaders/gl/hlslCompat.glsl"
#include "shadergen:/autogenConditioners.h"
#include "core/rendering/shaders/postFX/gl/postFx.glsl"

uniform sampler2D inputTex;
uniform float brightPassThreshold;

out vec4 OUT_col;

void main()
{
   vec4 _sample = hdrDecode( texture( inputTex, IN_uv0 ) );
   
   // Determine the brightness of this particular pixel.
   float lum = hdrLuminance( _sample.rgb );

   // Write the colour to the bright-pass render target
   OUT_col = ( vec4( lum.rrr, 1 ) );
}
